What's New?

Is it New Bike Time? Of course!
It's pretty obvious this is when people are out on the roads & trails having fun on their new bikes. This is a great time for a new bike because you've got 5 months of great riding weather ahead of you! Chain Reaction features the very best bikes from Trek & Electra, as well as the highest-quality travel bikes from Bike Friday. Road, Mountain, Hybrid, Electric assist, Kids... we've got them all. Probably the best selection in a single location you'll find anywhere on the peninsula too.
Got a bike that needs repairs?
We can handle that! If you purchased your bike from us, remember that you can bring it in anytime, without calling ahead, for minor on-the-spot adjustments of brakes, gears and wheels (at no charge; this is included with any bike purchased from us). For flat tires, again, no appointment needed. Where possible we try and do flat tires while you wait, but there will be times that's not possible. At most you will be leaving your bike overnight. For normal (bigger) repairs, calling ahead to schedule an appointment makes sense because, at this time of year, our repair backlog can grow quickly! It's normal for better bike shops to need 5 to 10 days. Better shops will not put speed in front of quality.
It's E-Bike time at Chain Reaction! E-Bikes are the latest thing; find out why! Commute to the office without needing a shower, bring home the groceries (even if you live on top of a hill!) or keep up with your obsessive-cyclist partner. Prices start at just $1299 (Oyama folding E-bike) up to the incredible Trek Super Commuter 8 at $5199.


Disc Brakes for Road Bikes- Making the right choice

Disc brakes are the latest thing for road bikes. But are they the right choice for you? We discuss the trade-offs including benefits, cost, added weight and maintenance requirements.

Just a few of the bikes we sell. One of them is just right for you!

Trek Emonda SL 8 WSD - Women's 50cm - LAST ONE!
$3,499.99 $4,729.99 26% Savings
Trek's Emonda SL 8 WSD is an incredibly light bike that rides incredibly we...
Electra Wild Flower 3i - Ladies'
$549.99 $769.99 29% Savings
Turn sidewalks into runways with these sweet, playful designs. The surprisi...
Trek Marlin 5
$479.99 $519.99 8% Savings
- Ride the fastest wheel that fits with Smart Wheel Size - Ride-tuned alum...
Trek FX S 4 Women's
$1,099.99 $1,149.99 4% Savings
Fitness, simplified FX offers a best-of-both-worlds combination of road ...
Trek Domane AL 2
$699.99 $799.99 13% Savings
Key features - Smooth, comfortable, confidence-inspiring geometry for lo...
Trek Precaliber 20 Boy's
$229.99 $239.99 4% Savings
Key features - Better than big box bikes, and your kid deserves it - Fr...
Bike Friday Pocket Companion Osata (Folding version)
$749.99 - $799.99 $944.00 - $999.00 Up To 20% Savings
Across town or across the continent, Bike Friday's Pocket Companion OSATA (...
Trek Domane ALR 4 Disc Women's
$1,449.99 $1,629.99 11% Savings
The smooth advantage Domane with IsoSpeed has it all: Blistering speed. ...
Trek FX 3 Disc
$729.99 $779.99 6% Savings
Fitness, simplified FX offers a best-of-both-worlds combination of road ...
Trek Domane S 6 58cm - LAST ONE!
$2,199.99 $2,699.99 19% Savings
- The smooth advantage - Rear IsoSpeed doubles compliance to conquer ev...
Trek Dual Sport 2 Women's
$589.99 $629.99 6% Savings
Dual Sport 2 Women's is a go-anywhere hybrid bike that performs on a variet...
Electra Loft 7i - Women's
$579.99 $709.99 18% Savings
When you've got places to go and things to see, Electra's Loft 7i is your s...